Absorption of CO with reaction in a biphasic medium (aqueous NaOH-n-hexane): rate enhancement due to dispersed organic phase and phase-transfer catalysis
✍ Scribed by R.V. Chaudhari; P. Jayasree; S.P. Gupte; H. Delmas
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 508 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
The absorption of CO in aqueous NaOH--n-hexane dispersions has been investigated in an agitated reactor over a temperature range of 353-433 K. The rate of absorption was found to be significantly enhanced in the presence of organic droplets and an emulsifier. Also, the addition of a phase-transfer catalyst and a Co complex catalyst resulted in further enhancement of CO absorption rates. The effect of agitation speed, NaOH concentration and CO pressure was studied at 353-433 K for different organic-phase hold-ups and the experimental data were found to be in good agreement with a theoretical model incorporating the variation of the gas-liquid interfacial area with hold-up. ,. (~')